3_false_color_denticle_SEMs.jpg (IMAGE) Smithsonian Tropical Research Institute Caption False color scanning electron microscope images of dermal denticles (scales) from several shark species found on Caribbean reefs. Denticle morphology varies across sharks with different ecological life modes. Credit Erin Dillon, Jorge Ceballos, Aaron O'Dea, & Ashley Diedenhofen Usage Restrictions Credit: STRI, Erin Dillon, Jorge Ceballos, Aaron O'Dea, & Ashley Diedenhofen License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.